Piston U-Ring Set P36

DESCRIPTION
Single acting Piston U-Ring Set P36 has asymmetrical profile and shortened outer lip and fabric reinforcement on the dynamic sealing side and an active back-up ring for gap closing. Piston Seal set P36 can be installed in “back-to-back” position in double-acting piston design with pressure on both sides.

Low friction due to fabric reinforcement, wide operating temperature range, easy instalation in closed groove and material FPM in black or brown color are significiant advantages of this Set.

APPLICATION
Earth moving equipment
Special hydraulic cylinders.
Truck tail lift
Presses
Industrial wehicles
Mobile hydraulics

MATERIAL

Standard material
Material set code SN218 SF266
Material base NBR 80 Shore A FPM 80 Shore A
Fabric Cotton Cotton
Back-up ring Acetal resine (POM) PTFE compound

For very low temperature applications up to -60 C, or excellent medium-rubber compatybility in special applications a few materials are recommended and available on request

OPERATING CONDITIONS

Pressure, Speed
Working pressure, P 40 Mpa
Running speed, v 0,5 m/s
Medium; Working Temperature
Material set code SN218 SF266
Hydraulic oils HL, HLP -30 to 100˚C -15 to +150˚C
HFA, HFB fluids +5 to +60˚C –
HFC fluids -30 to +60˚C –
HFD fluids – -15 to +150˚C
Water +5 to +90˚C –
Mineral greases -30 to +90˚C -15 to +150˚C

DESIGN RECOMMENDATION

Max. permissible gap dimension, emax
Max pressure ØD ≤ 80 ØD > 80
16 Mpa 0,60 0,65
26 Mpa 0,50 0,55
32 Mpa 0,40 0,45
40 Mpa 0,35 0,40
Surface quality*
Surface roughness Ra Rmax
Sliding surfaces 0.05.. 0,3 μm ≤ 2,5 μm
Groove base ≤ 1,6 μm ≤ 6,3 μm
Groove flanks ≤ 3,0 μm ≤ 15 μm

*Contact area Mr = 50% to 90% at cutting depth c=Rz/2 and reference line Cref=0%

ØD
Ød
H
L
S
Material
Filters Sort results
Reset Apply
ØD
Ød
H
L
S
Ød1
C
Material
Order code
Sing in
40
25
10
11
7.5
32.5
5
SN218
P36-211001
45
30
10
11
7.5
37.5
5
SN218
P36-211002
50
30
12
13
10
40
6
SN218
P36-211003
50
35
10
11
7.5
42.5
5
SN218
P36-211004
55
40
10
11
7.5
47.5
5
SN218
P36-211005
60
40
12
13
10
50
6
SN218
P36-211006
63
43
12
13
10
53
6
SN218
P36-211007
63
48
10
11
7.5
55.5
5
SN218
P36-211008
70
50
12
13
10
60
6
SN218
P36-211009
75
55
12
13
10
65
6
SN218
P36-211010
80
55
15
16
12.5
67.5
6.5
SN218
P36-211011
80
60
12
13
10
70
6
SN218
P36-211012
80
65
10
11
7.5
72.5
5
SN218
P36-211013
90
70
12
13
10
80
6
SN218
P36-211014
100
75
15
16
12.5
87.5
6.5
SN218
P36-211015
100
80
12
13
10
90
6
SN218
P36-211016
110
90
12
13
10
100
6
SN218
P36-211017
115
90
15
16
12.5
102.5
6.5
SN218
P36-211018
120
100
12
13
10
110
6
SN218
P36-211019
125
100
15
16
12.5
112.5
6.5
SN218
P36-211020
125
105
12
13
10
115
6
SN218
P36-211021
140
120
12
13
10
130
6
SN218
P36-211022
150
125
15
16
12.5
137.5
6.5
SN218
P36-211023
160
130
18
19
15
145
7.5
SN218
P36-211024
160
135
15
16
12.5
147.5
6.5
SN218
P36-211025
180
150
18
19
15
165
7.5
SN218
P36-211026
200
170
18
19
15
185
7.5
SN218
P36-211027
200
175
15
16
12.5
187.5
6.5
SN218
P36-211028
220
190
18
19
15
205
7.5
SN218
P36-211029
220
195
15
16
12.5
207.5
6.5
SN218
P36-211030
250
215
20
21
17.5
232.5
10
SN218
P36-211031
250
220
18
19
15
235
7.5
SN218
P36-211032
250
225
19
20.0
12.5
237.5
6.5
SN218
P36-211033
280
250
18
19
15
265
7.5
SN218
P36-211034
300
270
19
20.0
15
285
7.5
SN218
P36-211035
320
280
23
24
20
300
11
SN218
P36-211036
40
25
10
11
7.5
32.5
5
SF266
P36-211048
45
30
10
11
7.5
37.5
5
SF266
P36-211049
50
30
12
13
10
40
6
SF266
P36-211050
50
35
10
11
7.5
42.5
5
SF266
P36-211051
55
40
10
11
7.5
47.5
5
SF266
P36-211052
60
40
12
13
10
50
6
SF266
P36-211053
63
43
12
13
10
53
6
SF266
P36-211054
63
48
10
11
7.5
55.5
5
SF266
P36-211055
70
50
12
13
10
60
6
SF266
P36-211056
75
55
12
13
10
65
6
SF266
P36-211057
80
55
15
16
12.5
67.5
6.5
SF266
P36-211058
80
60
12
13
10
70
6
SF266
P36-211059
80
65
10
11
7.5
72.5
5
SF266
P36-211060
90
70
12
13
10
80
6
SF266
P36-211061
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